<?php
/**
 * The Template for displaying all single posts.
 *
 * @package WordPress
 * @subpackage Twenty_Twelve
 * @since Twenty Twelve 1.0
 */
 $post = $wp_query->post;
 
if (in_category('5')) {
	include(TEMPLATEPATH.'/single-blog.php');
} else {
	include(TEMPLATEPATH.'/single-default.php');
}